Cambrian(?), Middle Proterozoic, and Archean rocks penetrated in a borehole near Argenta, Beaverhead County, Montana, and some paleogeographic and structural implications /
Pearson, Robert Carl,1926-
Washington, D.C. : U.S. G.P.O.,
1996.
Includes bibliographical references (p. 14-15).
Geology, Structural
Borings
Rocks